Doorstop



1949. f B. E. FlSHER 2,462,174v

OOOOOO OP Patented Feb. 22, 1949 UNITED STATES TiENT t FFECE Thisinvention relates generally to bumpers and moreparticularly to doorstops.

.In the past'the type of .door-stop used in homes and other buildingsusually consisted of a metallicextension member or rod having a woodscrew thread 'formed on oneend thereof to secure'the stop to a woodenbaseboardor in some cases to therdoor, the other end of the'rod usuallybeing covereclsby a rubber bumper tip. This type of door stop performedits intended function successfully, namely preventing thedoor fromhittingthe baseboardor wall, but is objectionable in other respects. Forexample, these rigid door stops are quite frequently struck or hitsideways by passing objects or people with th'eresult that the threadedend of the stop becomes loosened in the baseboard or in the door.Consequently, from time to time it becomes necessaryto refilltheseienlarged screw holes or to screw the stop into the baseboard ordoor in a new location,

which is of course objectionable.

Accordingly, it is an object of the present invention to provides. newand improved doorstop in which the above mentioned objections areobviated.

More specifically, it is an object of thepresent invention to provide alaterally movable or flexible door stop which will flex if strucksideways without transmission of the force to the door and/or tothebaseboard on which the stop may be mounted.

Another object of theinvention is to provide a laterally movable stopwhich will always return tozits normal position.

Another object of the invention resides in the novel arrangement andconnection' between the parts to insure-centering of the stop member, tosupport the stop member and to hold a cap over the outer end of theholding screw.

. A further object of theinvention is to provide a stop of the abovementioned character which will be inexpensive to manufacture.

A still further object of the invention is to providedaterally swingabledoor stop which may be heid bytensioned, slip-on attaching means to adoor.

' Other .olojectsof .the invention will become apparent from thefollowing detailed description taken in connection with the accompanyingdrawing in which:

Figure 1 is a sectional view taken longitudinally of a door stop memberembodying features of the present invention.

Figure 2 is a view in elevation of the door stop, taken along the line22 of Figure 1.

5 Claims. (01. 16-8 6 :Figure3 is asectional view taken longitudl nallyof a modifiedform of my doorstop.

Figure-eds a viewin elevation of the door stop taken-along the lined-tof Figure 3 and figure 5 is a fragmentary elevational view ofthadoorstop of Figure 3 looking in the direction of'thearrows 5-5 ofFigure'3. Heferring to the drawing and first to Figures land 2, the doorstop shown may be secured to a mounting H? which maybe a door ormay bethe baseboard of a room, as desired. The door stop comprises in general,'a supporting member or screw is! and a door'stopmember I2. The doorstop-member i2 is carried or is supported by the screw -.!=l,-extendingtherefrom for abutment with the dooror baseboard, as the case may be.The

screw ll comprises a threaded portion 13, a second threaded portion i land an intermediate head 15. The threaded screw portions l3, [4 areintegral with the intermediate head I 5 extending respectively fromopposite sides thereof. As shown in the drawing, the threaded portion I3may have-awooclscrew thread and be screwed into the wooden mounting l0until the head l5 abuts thereagainst.

The stop member 1-2 is an elongated, laterally movable or flexiblemember which will yield sides without transmitting the force of suchmovement to its supporting screw ll. To this end,, I prefer to use ahelical coil of wire in the form-10f .a coil spring and to use a coilhaving abutting convolutions to provide a so called solid memberlongitudinally thereof. One end of the coil or stop member I2 istapered, as at I6, and threads onto the threaded screw portion l4, thusattaching the coiled stop member l2 to its support -.or screw it.Preferably, a bumper tip I! is provided and. fits over the other end ofthe coiled stop member I.2,'the tip it being made of a suitableresilientmateriaLsuch as rubber.

A bell like cap it fits over and surrounds the screw .head i5, threadedscrew portion l4 and an portion of the coiled stop member l2, the largeend of the cap seating against the side of the door oil-baseboard it, asthe case may be. At the other or outer end of the cap l8 there is anopening it where the metal is reversely bent inwardly providing aconical seat 2i converging or tapering inwardly of the cap 18. Thetapered end portion l t of the coiled stop member l2 seats and wedgestightly in and against the conical seat 2| when the coiled stop memberI2 is threaded onto the screw portion It and tightened down. Thisconical seat 2! for the coiled stop member l2 acts to center it orto-normally hold the member [2 such that its longitudinal axis will beat right angles to the surface against which the bumper is to hit. Inother words, the conical seat 2| corrects the tendency of the coiledstop member I2 to extend at an angle normal to the pitch angle of thethreaded portion I4. It will also be seen that threading of the taperedend of the coiled stop member I2 onto the threaded screw portion I4against the conical seat 2| serves as the sole means for holding the capI8 in place against the mounting I thus, eliminating need for screws orother fastening means holding the cap in place.

In the modification of Figures 3, 4 and 5, there is a door 22 on whichthe coiled door stop member I2 is mounted by means of a supportingmember 23. This supporting member 23 is preferably made of a strip ofspring sheet metal bent in a general U-shape having a leg 24, a leg orspring clip portion 25 and a joining base portion 26. As shown, thesupporting member 23 slips on the bottom of the door with the base 26against the lower door edge, the leg 24 fiat against one side of thedoor and the leg 25 flat against the other side thereof. The supportingmember 23 is frictionally held to the door by the tensional forceexerted by the clip portion or leg 25.

Formed out of the leg 24, a supporting boss 21 for the stop member l2,preferably of conical form has an opening 28 in its outer end where themetal is reverselybent inwardly of the cap, providing a conical seat 29for the tapered end ofthe stop member I2. At its inner edge, the conicalseat 29 is provided with an inturned, continuous flange 30 for attachingthe tapered end'of the stop member I2 to its support 23. As shown in thedrawing, the tapered end of the coil or stop member I2 is attached tothe outer end of the supporting boss by placing the terminal end of thecoil through the opening 28 behind the flange 30 and then turning thestop member I2 until one or more of its coils lodge behind the flange 30in the boss 23. In this way the stop member or coil I2 is held andsupported by the supporting member 23 without need of separate oradditional attaching means.

From the above description it will be appreciated that in either form ofthe invention, the stop member by reason of being laterally yieldablewill not transmit a laterally directed force thereagainst to its supportwith the result that the stop member supports will not be loosened. Inthe form of door stop of Figure 1, the conical seat of the cap serves tocenter the coil stop member which in turn forced against the conicalseat to transmit laterally directed forces thereagainst to the stopmember support, is attached directly to its support without need ofseparate attaching means.

It will be understood that various forms of the invention other thanthose described above may be used without departing from the spirit orscope of the invention. Accordingly, the invention is to be limited onlyas indicated by the scope of the appended claims.

Having thus described the various features of my invention, what I claimas new and desire to secure by Letters Patent is:

1. A door stop comprising, a supporting member having a threadedportion, a cap member over the threaded portion of said supportingmember, said cap having a conical opening converging inwardly thereofsurrounding the threaded portion of said supporting member, a coilspring having an outer bumper end, said coil spring having an innertapered end portion seating in the conical seat of said cap member andthreadedly connected to the threaded portion of said supporting member.

2. A door stop for supporting on a mounting comprising, a support havinga threaded portion to screw into the mounting and having a secondthreaded portion to extend from the mounting, a cap member over thesecond threaded portion to seat against the mounting, said cap having aconical openingsubstantially co-axial with the second threaded portionand tapering inwardly of the cap, a coil spring having a tapered endportion seating in the conical opening of said cap and threaded onto thesecond threaded portion for solely holding the cap to the mounting andfor centering the spring, and a bumper tip on the outer end of the coilspring.

3. A door stop comprising, a supporting member for attachment to a wall,a socket member surrounding said supporting member and adapted to engagethe wall, and a helical coil stop member attached to said supportingmember in said socket member and urging the latter against the wall.

4. A-door stop comprising, a supporting member having an outer'threadedshank portion, a cap member surrounding said threaded shank portionhaving an outwardly facing conical socket and a laterally flexiblecoiled bumper member having a conical end threaded onto said shankportion in said com'cal socket.

- 5. A door stop comprising, a securing member having an outer threadedend portion, a cap member to surround the outer threaded end portion ofsaid securing member having a conical socket, and a helical coil bumpermember having a tapered end for threading onto the threaded end portionof said nail and for engaging in said socket to hold said'cap in place.

BERNARD E. FISHER.

REFERENCES CITED The following references are of record in the file ofthis patent:

. UNITED STATES PATENTS Number Name Date 436,320 Stevens Sept. 9, 18901,232,000 Chase July 3, 1917 2,109,228 Carlson Feb. 22, 1938 2,338,899Brenzikofer Jan. 11, 1944

